神经病变病变和身体质量指数之间的关联独立于认知能力
Raul Dos Reis Ururahy1, Marina Scott do Val2, Aline Maria Macagnan Ciciliati1
1Division of Geriatrics - Laboratório de Investigação Médica no Envelhecimento (LIM 66), University of São Paulo Medical School, São Paulo, Brazil.
Journal of Alzheimer's disease : JAD
|August 30, 2024
概括
低体重指数 (BMI) 与大脑病变有关,特别是神经纤维状结 (NFT). 这种关联甚至在临床前阿尔茨海默氏症中也存在,这种关联是由认知功能介导的.
科学领域:
- 神经病理学神经病理学
- 神经科学是一个神经科学.
- 老年学是一门学科.
背景情况:
- 低体重指数 (BMI) 与中度至重度痴呆症有关.
- 在患有临床前神经病理的个体中,体重下降也可能发生.
- 解剖研究对于识别与体重变化相关的临床前脑疾病至关重要.
研究的目的:
- 调查痴呆症相关的大脑病变与BMI之间的关联.
- 评估认知功能在这种关联中的调解作用.
主要方法:
- 利用了1,170名参与者的数据,包括死后认知和神经病理评估.
- 采用线性回归模型来评估神经病变和BMI之间的关系.
- 进行调解分析,以探索认知能力的直接和间接影响.
主要成果:
- 较低的BMI与较高的神经病变病变负担和较差的认知能力相关.
- 神经纤维状结 (NFT) 和神经病理并发症与低BMI显著相关.
- NFTs通过认知功能与BMI有间接的关联,甚至在认知正常的个体中也有直接的关联.
结论:
- 神经纤维状结与低BMI直接相关,即使是在阿尔茨海默病的临床前阶段.
- 认知功能部分调解神经病理和BMI之间的关系.
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